EP 3657499 A4 20200826 - TIME-DOMAIN STEREO CODING AND DECODING METHOD AND RELATED PRODUCT
Title (en)
TIME-DOMAIN STEREO CODING AND DECODING METHOD AND RELATED PRODUCT
Title (de)
VERFAHREN ZUR ZEITBEREICHSSTEREOCODIERUNG UND -DECODIERUNG UND ZUGEHÖRIGES PRODUKT
Title (fr)
PROCÉDÉ DE CODAGE ET DÉCODAGE STÉRÉOPHONIQUE DANS LE DOMAINE TEMPOREL ET PRODUIT ASSOCIÉ
Publication
Application
Priority
- CN 201710680152 A 20170810
- CN 2018100088 W 20180810
Abstract (en)
[origin: EP3657499A1] An audio encoding and decoding method and a related apparatus are provided. The audio encoding method includes: determining a channel combination scheme for a current frame; when the channel combination scheme for the current frame is different from a channel combination scheme for a previous frame, performing segmented time-domain downmix processing on left and right channel signals in the current frame based on the channel combination scheme for the current frame and the channel combination scheme for the previous frame, to obtain a primary channel signal and a secondary channel signal in the current frame; and encoding the obtained primary channel signal and secondary channel signal in the current frame.
IPC 8 full level
G10L 19/008 (2013.01)
CPC (source: CN EP KR US)
G10L 19/008 (2013.01 - CN EP KR US); G10L 19/20 (2013.01 - CN KR); G10L 19/22 (2013.01 - CN KR US)
Citation (search report)
- [E] EP 3664087 A1 20200610 - HUAWEI TECH CO LTD [CN]
- [A] EP 2323130 A1 20110518 - KONINKL PHILIPS ELECTRONICS NV [NL]
- [A] OH EUNMI ET AL: "Enhanced Stereo Algorithms in the Unified Speech and Audio Coding", CONFERENCE: 43RD INTERNATIONAL CONFERENCE: AUDIO FOR WIRELESSLY NETWORKED PERSONAL DEVICES; SEPTEMBER 2011, AES, 60 EAST 42ND STREET, ROOM 2520 NEW YORK 10165-2520, USA, 29 September 2011 (2011-09-29), XP040567673
- See also references of WO 2019029736A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3657499 A1 20200527; EP 3657499 A4 20200826; AU 2018315436 A1 20200305; AU 2018315436 B2 20230504; AU 2023210620 A1 20230824; BR 112020002842 A2 20200728; CN 109389985 A 20190226; CN 109389985 B 20210914; CN 113782039 A 20211210; KR 102380454 B1 20220329; KR 102492791 B1 20230126; KR 102637514 B1 20240215; KR 20200035306 A 20200402; KR 20220045053 A 20220412; KR 20230017367 A 20230203; KR 20240024354 A 20240223; RU 2020109682 A 20210910; RU 2020109682 A3 20211115; US 11355131 B2 20220607; US 11900952 B2 20240213; US 2020175999 A1 20200604; US 2022310101 A1 20220929; US 2024153511 A1 20240509; WO 2019029736 A1 20190214
DOCDB simple family (application)
EP 18844668 A 20180810; AU 2018315436 A 20180810; AU 2023210620 A 20230803; BR 112020002842 A 20180810; CN 201710680152 A 20170810; CN 2018100088 W 20180810; CN 202110902538 A 20170810; KR 20207006985 A 20180810; KR 20227010003 A 20180810; KR 20237002617 A 20180810; KR 20247004919 A 20180810; RU 2020109682 A 20180810; US 202016784759 A 20200207; US 202217663913 A 20220518; US 202318544935 A 20231219